Bonus

The Bohr and Haldane effects describe how this protein’s affinity for oxygen varies based on the concentrations of oxygen and carbon dioxide. For 10 points each:
[10e] Name this protein that transports oxygen through the bloodstream while simultaneously giving blood its red color.
ANSWER: hemoglobin [or Hb or Hgb]
[10m] Hemoglobin switches between its tense and relaxed states through the movement of a proximal residue of this amino acid. This amino acid can protonate when blood pH decreases because its side chain has a pKa of around 6.
ANSWER: histidine [accept His or H; reject “histamine”]
[10h] Expression of hemoglobin is localized to red blood cells by the classical example of these cis-regulatory elements. These enhancers allow for tissue-specific expression of linked genes at chromatin sites up to 20 kilobases downstream.
ANSWER: locus control regions [or LCRs]
<Biology>
Answerlines and category may not exactly match the version played at all sites

Back to bonuses

Conversion

TeamOpponentPart 1Part 2Part 3TotalParts
Arizona StateColumbia B1010020EM
British ColumbiaToronto B1010020EM
Chicago AMichigan1010020EM
Columbia AMinnesota1010020EM
Cornell AWaterloo A1010020EM
Georgia TechNorth Carolina B100010E
IndianaYale1010020EM
Iowa StateFlorida100010E
MITIllinois B1010020EM
North Carolina AOttawa1010020EM
NorthwesternJohns Hopkins1010020EM
Ohio StateGeorgia State1010020EM
Penn StateChicago B100010E
RITIllinois A100010E
RutgersToronto C1010020EM
StanfordUCF100010E
UC Berkeley BVirginia Tech1010020EM
VanderbiltMaryland100010E
WUSTL ACornell B1010020EM
WUSTL BWinona State1010020EM
Waterloo BUC Berkeley A1010020EM

Summary

TournamentExact Match?HeardPPBEasy %Medium %Hard %
2025 ACF NationalsYes2117.14100%71%0%